53746321 has 4 divisors (see below), whose sum is σ = 54043444. Its totient is φ = 53449200.

The previous prime is 53746291. The next prime is 53746337. The reversal of 53746321 is 12364735.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12364735 = 5 ⋅2472947.

It can be written as a sum of positive squares in 2 ways, for example, as 15492096 + 38254225 = 3936^2 + 6185^2 .

It is a cyclic number.

It is not a de Polignac number, because 53746321 - 2⁵ = 53746289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53746351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148290 + ... + 148651.

It is an arithmetic number, because the mean of its divisors is an integer number (13510861).

Almost surely, 2^53746321 is an apocalyptic number.

It is an amenable number.

53746321 is a deficient number, since it is larger than the sum of its proper divisors (297123).

53746321 is a wasteful number, since it uses less digits than its factorization.

53746321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297122.

The product of its digits is 15120, while the sum is 31.

The square root of 53746321 is about 7331.1882392965. The cubic root of 53746321 is about 377.3835051266.

The spelling of 53746321 in words is "fifty-three million, seven hundred forty-six thousand, three hundred twenty-one".